Event Tags 

Event tags correspond to the events in the XVT API: events that are generated by user actions (for example, mouse clicks) or by the window system (for example, update events).

Special Tags 

Special tags do not correspond to events but rather serve as convenient places to add functions and variable declarations to the framework code.

Availability 

The following table describes which tags are available for each type of user-interface object: the application itself, windows, dialogs, controls, menubars, and menu items: